Dental and Periodontal Changes Following the Acceleration of Decrowding of Lower Anterior Teeth Using a PAOO Procedure: A Randomized Controlled Trial
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 入组人数
- 38
- 试验地点
- 1
- 主要终点
- Change in the inter-canine width
研究概览
简要总结
Patients at the Orthodontic Department of the University of Damascus Dental School will be examined and subjects who meet the inclusion criteria will be included. Then, initial diagnostic records (diagnostic gypsum models, internal and external oral photographs, and radiographic images) will be studied to ensure that the selection criteria are accurately matched.
This study aims to compare two groups of patients with moderate crowding of the lower anterior teeth. Experimental group: the patients in this group will be treated with periodontally accelerated osteogenic orthodontics Control group: the patients in this group will be treated using fixed appliances without any acceleration method.
详细描述
Correction of irregular teeth can take a long time, and this depends on various factors such as the good compliance of the patient, the amount of dental crowding, and the need for extraction in the course of orthodontic treatment.
Many methods have been used to accelerate tooth movement, and recently the PAOO technique has emerged as an effective therapeutic intervention.
PAOO is a promising procedure but only a few cases were reported in the literature. Controlled clinical and histological studies are needed to understand the biology of tooth movement with this procedure, the effect on teeth and bone, post-retention stability, measuring the volume of mature bone formation, and determining the status of the periodontium and roots after treatment.
研究设计
- 研究类型
- Interventional
- 分配方式
- Randomized
- 干预模型
- Parallel
- 主要目的
- Treatment
- 盲法
- Single (Outcomes Assessor)
入排标准
- 年龄范围
- 18 Years 至 28 Years（Adult）
- 性别
- All
- 接受健康志愿者
- 否
入选标准
- •skeletal class I malocclusion (ANB=2-4)
- •normal vertical growth pattern.
- •moderate crowding of lower anterior teeth (i.e., 4-6 millimeters of a tooth size-arch length discrepancy)
- •1 to 3 mm of overjet and 1 to 4 mm of the overbite
- •good oral health
排除标准
- •medical, social, and psycho contraindications to oral surgery
- •presence of periodontal diseases
- •poor oral hygiene
- •previous orthodontic treatment
结局指标
主要结局
Change in the inter-canine width
时间窗: T0: One day before the beginning of treatment; T1: at the end of the alignment stage
The distance between the cusp tips of the lower canines. This variable will be measured on plaster models.
Change in the inter-2nd premolar width
时间窗: T0: One day before the beginning of treatment; T1: at the end of the alignment stage
The distance between the central fossae of the lower second premolars. This variable will be measured on plaster models.
Change in Little's Index of Irregularity
时间窗: T0: one day before the beginning of treatment; T1: after 1 month; T2: after 2 months; T3: after 4 months; T4: after 5 months; T5: at the end of the alignment stage which is expected within 5 - 6 months
The irregularity of the lower incisors is calculated by measuring the amount of deviations of the anatomic contact points between the six anterior teeth in the horizontal direction in mm, since the sum of these measurements represents the value of the index (Little, 1975). The ordinary orthodontic treatment aims to keep this Index less than 1 mm at the end of treatment.
次要结局
- Change in the Plaque index(T0: One day before the beginning of treatment; T1: at the end of the alignment stage)
- Change in the Papillary Bleeding Index(T0: One day before the beginning of treatment; T1: at the end of the alignment stage)
- Change in the Gingival index(T0: One day before the beginning of treatment; T1: at the end of the alignment stage)